American Association for Cancer Research 17impact of adopting these aspects of a healthy lifestyle couldbe enormous because it is estimated that one-third of allnew cancer diagnoses in the United States are related tobeing overweight or obese, not getting enough physicalactivity, and/or having poor dietary habits ( 10, 16).Moreover, more than one-third of adults, or more than 72million individuals, and 17 percent of youth in the UnitedStates are obese ( 21, 22).